Charak Samhita
अतिमृद्वतितीक्ष्णानां गन्धानामुपसेवनम्। असेवनं सर्वशश्च घ्राणेन्द्रियविनाशनम् ॥१२५॥
Inhalation of the smell of putrified objects, germs and poisonous as well as unseasonal smells constitutes wrong utilization of olfactory faculty.
english translation
atimRdvatitIkSNAnAM gandhAnAmupasevanam। asevanaM sarvazazca ghrANendriyavinAzanam ॥125॥
hk transliteration by Sanscript